TPS28225DRBT

产品概述

The TPS28225DRBT is a 8-pin high frequency sink synchronous MOSFET Driver for N-channel complimentary driven power MOSFETs with adaptive dead-time control. This driver is optimized for use in variety of high-current one and multi-phase DC-to-DC converters. It is a solution that provides high efficiency, small size and low EMI emissions. The efficiency is achieved by up to 8.8V gate drive voltage, 14ns adaptive dead-time control, 14ns propagation delay and high-current 2A source and 4A sink drive capability. The 0.4R impedance for the lower gate driver holds the gate of power MOSFET below its threshold and ensures no shoot-through current at high dV/dt phase node transitions. The bootstrap capacitor charged by an internal diode allows use of N-channel MOSFETs in a half-bridge configuration.

• Drives two N-channel MOSFETs with 14ns adaptive dead time
• Capable to drive MOSFETs with >=40A current per phase
• Low-side driver sink on-resistance (0.4R) prevents dV/dT related shoot-through current
• 3-state PWM input for power stage shutdown
• Space saving enable (input) and power good (output) signals on same pin
• Thermal shutdown
• UVLO protection
• Internal bootstrap diode structure
• High performance replacement for popular 3-state input drivers
• 3 to 27V Wide power system train input voltage

• 2 to 13.2V Amplitude wide input PWM signals
• <30ns Input PWM pulses capable to propagate
• Green product and no Sb/Br

应用

电源管理, 便携式器材